Polyquaternium-7

Overview

Chemical structure of Polyquaternium-7

Polyquaternium-7 is a synthetic polymer used in a variety of personal care products. It is part of the polyquaternium family, which are polymers that contain quaternary ammonium groups. These compounds are known for their conditioning properties and are commonly used in hair care and skin care products.

Chemical Structure

Polyquaternium-7 is a copolymer of acrylamide and diallyldimethylammonium chloride. The presence of quaternary ammonium groups gives it a positive charge, which allows it to interact with the negatively charged surfaces of hair and skin. This interaction helps to reduce static electricity and improve the texture and feel of hair and skin.

Applications

Polyquaternium-7 is widely used in the cosmetics industry. It is found in products such as shampoos, conditioners, body washes, and lotions. Its primary function is to act as a conditioning agent, providing a smooth and silky feel to hair and skin. It also helps to improve the spreadability of products and enhances their moisturizing properties.

Hair Care

In hair care products, Polyquaternium-7 helps to detangle hair, reduce frizz, and add shine. It forms a thin film on the hair shaft, which protects it from damage and environmental stressors. This makes it a popular ingredient in both rinse-off and leave-in conditioners.

Skin Care

In skin care formulations, Polyquaternium-7 acts as a humectant, attracting moisture to the skin. It is often used in moisturizers and cleansers to improve skin hydration and texture. Its film-forming properties also help to protect the skin barrier.

Safety and Environmental Impact

Polyquaternium-7 is generally considered safe for use in personal care products. It is non-toxic and non-irritating to the skin and eyes. However, as with all synthetic polymers, there are concerns about its environmental impact, particularly in terms of biodegradability and accumulation in aquatic environments.

Related pages

• Polyquaternium
• Quaternary ammonium cation
• Hair care
• Skin care